538571407 has 16 divisors (see below), whose sum is σ = 623661984. Its totient is φ = 459648000.

The previous prime is 538571353. The next prime is 538571419. The reversal of 538571407 is 704175835.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538571407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 538571407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538571437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75307 + ... + 82147.

It is an arithmetic number, because the mean of its divisors is an integer number (38978874).

Almost surely, 2^538571407 is an apocalyptic number.

538571407 is a deficient number, since it is larger than the sum of its proper divisors (85090577).

538571407 is a wasteful number, since it uses less digits than its factorization.

538571407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 538571407 is about 23207.1412931451. The cubic root of 538571407 is about 813.6065400400.

The spelling of 538571407 in words is "five hundred thirty-eight million, five hundred seventy-one thousand, four hundred seven".